the enzyme can act as a sulfohydrolase, catalyzing the liberation of AMP from adenosine 5'-phosphosulfate. However, in the presence of phosphate, the enzyme also behaves as adenosine 5'-phosphosulfate phosphorylases, forming ADP

the enzyme can act as a sulfohydrolase, catalyzing the liberation of AMP from adenosine 5'-phosphosulfate. However, in the presence of phosphate, the enzyme also behaves as adenosine 5'-phosphosulfate phosphorylases, forming ADP. The enzyme does not use adenosine 5'-phosphoamidate, adenosine 5'-phosphofluoride, and diadenosine tetraphosphate as substrates